A5100734658- Graphene research and applications
- 2D Materials and Applications
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- GaN-based semiconductor devices and materials
- MXene and MAX Phase Materials
- Nanowire Synthesis and Applications
- Advanced Thermoelectric Materials and Devices
- Nanoparticle-Based Drug Delivery
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Thin-Film Transistor Technologies
- Photonic Crystals and Applications
- Dielectric materials and actuators
- Advanced Thermodynamics and Statistical Mechanics
- Chalcogenide Semiconductor Thin Films
- Mesoporous Materials and Catalysis
- Optical Coatings and Gratings
- Advanced Sensor and Energy Harvesting Materials
- Radio Frequency Integrated Circuit Design
- Electrospun Nanofibers in Biomedical Applications
- History and Theory of Mathematics
- Titanium Alloys Microstructure and Properties
- Relativity and Gravitational Theory
- Conducting polymers and applications
City University of Hong Kong
2020-2025
Hong Kong Polytechnic University
2024-2025
ZTE (China)
2021-2025
City University of Hong Kong, Shenzhen Research Institute
2020-2024
Shenzhen Polytechnic
2024
Huzhou University
2024
State Key Laboratory on Integrated Optoelectronics
2007-2023
Jilin University
2023
North University of China
2023
Shanxi Provincial Institute of Chemical Industry (China)
2022
As an indispensable strategy for tumor treatment, surgery may cause two major challenges: recurrence and wound infection. Here, a thermoelectric therapeutic is provided as either independent cancer therapy or surgical adjuvant treatment. Bi0.5 Sb1.5 Te3 (BST) Bi2 Te2.8 Se0.2 (BTS) nanoplates composed of Z-scheme heterojunction (BST/BTS) are fabricated via two-step hydrothermal processes. The contact between BST BTS constructs interfacial electric field due to Fermi energy level...
The scalable 2D device fabrication and integration demand either the large-area synthesis or post-synthesis transfer of layers. While direct materials on most targeted surfaces remains challenging, approach from growth substrate onto offers an alternative pathway for applications integrations. However, current techniques predominantly involve polymers organic solvents, which are liable to contaminate deform ultrasensitive atomic Here, novel ice-aided ice-stamp methods developed, in water...
Doxorubicin (Dox)-loaded stealth liposomes (similar to those in clinical use) can incorporate small amounts of porphyrin–phospholipid (PoP) enable chemophototherapy (CPT). PoP is also an intrinsic and intrabilayer 64Cu chelator, although how radiolabeling impacts drug delivery has not yet been assessed. Here, we show that radiolabel the stable bilayer preformed Dox-loaded with inclusion 1% ethanol without inducing leakage. Dox-PoP labeled copper behaved nearly identically unlabeled ones...
Low temperature and high humidity conditions significantly degrade the performance of solid-state lubricants consisting van der Waals (vdW) atomic layers, owing to liquid water layer attached/intercalated vdW which greatly enhances interlayer friction. However, using low in situ force microscopy (AFM) friction (FFM), we unveil unexpected ultralow between two-dimensional (2D) ice, a solid phase confined 2D space, molybdenum disulfides (MoS2). The MoS2 ice is reduced by more than 30% as...
We report the observation of an electric field in twisted-bilayer molybdenum disulfide (MoS
Due to the excellent material characteristics, AlGaN/GaN HEMTs are widely used in high power and frequency applications. However, existence of damages, defects dislocations still degrade device features because trapping effects. In this paper, investigations effects summarized discussed understand inner mechanism, including gate-lag drain-lag transient responses, current collapse pulsed <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">...
Considering the high demand for air quality, development of biomass-based filtration membranes with efficiency and good stability is an urgent task. In this work, polyvinyl alcohol (PVA), gelatin (GA), cellulose nanocrystals (CNC) were mixed prepared into a membrane through electrospinning method filtration. After hydrophobic modification, modified PVA/GA/CNC composite showed excellent PM2.5 (97.65%) internal three-dimensional structure barrier electrostatic capture effect CNC negative...
In this paper, a 3.2-3.6 GHz two-stage Doherty power amplifier (PA) module is proposed for fifth-generation (5G) massive multiple-input multiple-output (MIMO) base stations. A detailed design method and procedure compact low-loss combiner suitable the PA are introduced. Based on combiner, implemented using gallium nitride (GaN) transistors surface-mounted devices (SMDs) with packaged size of 8 × mm2. The achieves 3 dB small-signal bandwidth 3.1-3.9 peak gain 31.7 dB. From 3.2 to 3.6 GHz,...
Abstract Gallium nitride (GaN)-based high-electron mobility transistors (HEMTs) are widely used in high power and frequency application fields, due to the outstanding physical chemical properties of GaN material. However, HEMTs suffer from degradations even failures during practical applications, making analyses post-failure devices extremely significant for reliability improvements further device optimizations. In this paper, common characterization techniques post failure introduced,...
Three passes of hot compression tests isostatic pressed Ti-6Al-4V alloys are carried out on a Gleeble-1500D thermo-mechanical simulator with temperature-drop 950–900-850 °C, constant strain rate 0.01∼1 s−1, and the height reduction from 20% to 70%. Then, subsequent solution aging treatments conducted heat treatment furnace. The corresponding results microstructures mechanical properties show: In process multi-pass deformation, dynamic recrystallization spheroidization lamellar α phases main...
Achieving two-dimensionally (2D) ordered surface wrinkle patterns is still challenging not only for the atomic-thick 2D materials but also in general all soft surfaces. Normally disordered on isotropic surfaces can be rendered via biaxial straining. Here, we report that 1D and produced by sequential wrinkling controlled thermal straining vertical spatial confinement. The various hierarchical generated our method are highly periodic, hexagonal crystal symmetry obeyed. More interestingly,...
The prediction of the total electron content (TEC) in ionosphere is great significance for satellite communication, navigation and positioning. This paper presents a multiple-attention mechanism-based LSTM (multiple-attention Long Short-Term Memory, MA-LSTM) TEC model. main achievements this are as follows: (1) adding an L1 constraint to LSTM-based model—an prevents excessive attention input sequence during modelling overfitting; (2) mechanism modules By three parallel modules, respectively,...
We describe our progress in developing the infrastructure for traceable transient measurements of pressure. Towards that end, we have built and characterized a dual diaphragm shock tube allows us to achieve amplitude reproducibility approximately 2.3% shocks with Mach speeds ranging from 1.26–1.5. In this proof-of-concept study use characterize dynamic response photonic sensors embedded polydimethylsiloxane (PDMS), material choice soft tissue phantoms. Our results indicate PDMS-embedded...
Utilization of graphene (GE) in water is physically limited by its lack functional groups, high hydrophobicity, and large interlayer van der Waals forces. Easy agglomeration GE makes the preparation GE-filled composites an aqueous environment very difficult. Conventional methods solve this problem introducing a surfactant to system. However, addition amount may hinder performance composite. In study, highly stable suspensions (remaining for more than 30 days) with concentration (1.5 mg/mL)...